February BEMC Talk: Rasch Modeling, QA for categorical data

Dear BEMC Community,

We’ve got another great BEMC Talk coming up for you (including a bonus hands-on workshop!)

“How to calibrate a questionnaire: quality-assuring categorical data with psychometric measurement theory” – Prof. Leslie Pendrill (RI:SE Metrology, Gothenburg)

Date: Wednesday, February 7th, 2018 /   Time: 4:00pm

Optional hands-on workshop to follow at 5:15pm, important: bring your laptops with MINISTEPS installed (free!) http://www.winsteps.com/ministep.htm

Space for both events is limited, so please register here in advance: https://goo.gl/forms/ukf6IavdmH04deOs2

We need your help! Please complete these two very short (1 min/each) questionnaires ahead of time so we have some data! Go to www.menti.com

->survey 1 code: 383775 , survey 2 code: 277042

Location: Seminar room of the Neurology Clinic, first floor (Alte Nervenklinik) – follow our signs, Bonhoefferweg 3, Charité Universitätsmedizin Berlin- Campus Mitte, 10117 Berlin–> see Campus Map


Measurements in the social sciences – with ‘instruments’ such as questionnaires, ability tests, – in education, healthcare and so on, need metrological quality assurance. A patient, for instance, expects the same quality of care wherever and whenever provided. This is a challenge since the usual tools of statistics do not always work on the categorical scales typical of such measurements. Modelling a measurement system where the instrument is a human being, and where the output is a performance metric, i.e., how well the set-up performs an assessment, appears to be a way forward. This BEMC Colloquium will present the necessary tools, such as psychometric Rasch measurement theory, and will be followed by a hands-on workshop where you yourselves can analyse cases such as (i) the Quality of the BEMC Colloquium Series and (ii) a Healthy Lifestyle.

Please share this invite with colleagues. Hope to see you there!

Coming up: we are trying something new – a BEMC journal club. Every third Wednesday of the month, we’ll read a paper together. Want to know more? Check out our website for the full schedule of JClub and Talk events and more info. 

Follow us on Twitter: @bemcolloquium

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